JPS5585694A - Preparation of alumite substrate - Google Patents

Preparation of alumite substrate

Info

Publication number
JPS5585694A
JPS5585694A JP15757478A JP15757478A JPS5585694A JP S5585694 A JPS5585694 A JP S5585694A JP 15757478 A JP15757478 A JP 15757478A JP 15757478 A JP15757478 A JP 15757478A JP S5585694 A JPS5585694 A JP S5585694A
Authority
JP
Japan
Prior art keywords
substrate
alumite
heat
coating
polishing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15757478A
Other languages
Japanese (ja)
Other versions
JPS5826439B2 (en
Inventor
Masaki Shinohara
Katsuhiko Nakagawa
Wakatake Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53157574A priority Critical patent/JPS5826439B2/en
Publication of JPS5585694A publication Critical patent/JPS5585694A/en
Publication of JPS5826439B2 publication Critical patent/JPS5826439B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Electrochemical Coating By Surface Reaction (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To obtain the substrate for magnetic disk without causing oxidation coating crack, by polishing alumite plate obtained by carrying out anodic oxidation after heat-treating at a specific temperature preliminarily.
CONSTITUTION: Heat resisting property of coating is improved and crack initiation is prevented, by polishing after heat-treating at 150W350°C preliminarily, at the time of carrying out anodic oxidation of Al plate surface and offering produced oxidation coating for magnetic recording medium. Accordingly, alumite substrate for magnetic disk having a high flatness, is able to obtain easily.
COPYRIGHT: (C)1980,JPO&Japio
JP53157574A 1978-12-22 1978-12-22 Manufacturing method of alumite substrate for magnetic disk Expired JPS5826439B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53157574A JPS5826439B2 (en) 1978-12-22 1978-12-22 Manufacturing method of alumite substrate for magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53157574A JPS5826439B2 (en) 1978-12-22 1978-12-22 Manufacturing method of alumite substrate for magnetic disk

Publications (2)

Publication Number Publication Date
JPS5585694A true JPS5585694A (en) 1980-06-27
JPS5826439B2 JPS5826439B2 (en) 1983-06-02

Family

ID=15652657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53157574A Expired JPS5826439B2 (en) 1978-12-22 1978-12-22 Manufacturing method of alumite substrate for magnetic disk

Country Status (1)

Country Link
JP (1) JPS5826439B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816063A (en) * 1981-07-17 1983-01-29 Fujitsu Ltd Heat resistant alumite base plate
JPS6286197A (en) * 1985-10-01 1987-04-20 Kobe Steel Ltd Production of colored titanium material having excellent adhesiveness

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030741U (en) * 1983-08-09 1985-03-01 象印マホービン株式会社 Chip protection structure of stainless steel vacuum double bottle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496021A (en) * 1972-05-09 1974-01-19
JPS4919551A (en) * 1972-06-14 1974-02-21
JPS4931613A (en) * 1972-07-24 1974-03-22

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496021A (en) * 1972-05-09 1974-01-19
JPS4919551A (en) * 1972-06-14 1974-02-21
JPS4931613A (en) * 1972-07-24 1974-03-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816063A (en) * 1981-07-17 1983-01-29 Fujitsu Ltd Heat resistant alumite base plate
JPS6127477B2 (en) * 1981-07-17 1986-06-25 Fujitsu Ltd
JPS6286197A (en) * 1985-10-01 1987-04-20 Kobe Steel Ltd Production of colored titanium material having excellent adhesiveness

Also Published As

Publication number Publication date
JPS5826439B2 (en) 1983-06-02

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